CMR: \[\frac{{{a^2} - {b^2}}}{c} + \frac{{{c^2} - {b^2}}}{a} + \frac{{{a^2} - {c^2}}}{b} \ge 3a - 4b + c\] Nếu \[a \ge b \ge c\]
Edited by Love XXX, 05-09-2013 - 15:43.
CMR: \[\frac{{{a^2} - {b^2}}}{c} + \frac{{{c^2} - {b^2}}}{a} + \frac{{{a^2} - {c^2}}}
Started By Love XXX, 05-09-2013 - 15:41
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